Aric Stewart : dinput: Move joystick mapping functions to the generic part.
Alexandre Julliard
julliard at winehq.org
Tue Mar 10 10:53:31 CDT 2009
Module: wine
Branch: master
Commit: e90e7e5b7746e4c3b1f8fbd68bbcb65307b4135f
URL: http://source.winehq.org/git/wine.git/?a=commit;h=e90e7e5b7746e4c3b1f8fbd68bbcb65307b4135f
Author: Aric Stewart <aric at codeweavers.com>
Date: Mon Mar 9 10:07:07 2009 -0500
dinput: Move joystick mapping functions to the generic part.
---
dlls/dinput/joystick.c | 55 +++++++++++++++++++++++++++++++++++
dlls/dinput/joystick_linuxinput.c | 57 +------------------------------------
dlls/dinput/joystick_private.h | 3 ++
3 files changed, 59 insertions(+), 56 deletions(-)
diff --git a/dlls/dinput/joystick.c b/dlls/dinput/joystick.c
index 006e5be..a19cf27 100644
--- a/dlls/dinput/joystick.c
+++ b/dlls/dinput/joystick.c
@@ -387,3 +387,58 @@ HRESULT WINAPI JoystickAGenericImpl_GetDeviceState(
return DI_OK;
}
+
+/*
+ * This maps the read value (from the input event) to a value in the
+ * 'wanted' range.
+ * Notes:
+ * Dead zone is in % multiplied by a 100 (range 0..10000)
+ */
+LONG joystick_map_axis(ObjProps *props, int val)
+{
+ LONG ret;
+ LONG dead_zone = MulDiv( props->lDeadZone, props->lDevMax - props->lDevMin, 10000 );
+ LONG dev_range = props->lDevMax - props->lDevMin - dead_zone;
+
+ /* Center input */
+ val -= (props->lDevMin + props->lDevMax) / 2;
+
+ /* Remove dead zone */
+ if (abs( val ) <= dead_zone / 2)
+ val = 0;
+ else
+ val = val < 0 ? val + dead_zone / 2 : val - dead_zone / 2;
+
+ /* Scale and map the value from the device range into the required range */
+ ret = MulDiv( val, props->lMax - props->lMin, dev_range ) +
+ (props->lMin + props->lMax) / 2;
+
+ /* Clamp in case or rounding errors */
+ if (ret > props->lMax) ret = props->lMax;
+ else if (ret < props->lMin) ret = props->lMin;
+
+ TRACE( "(%d <%d> %d) -> (%d <%d> %d): val=%d ret=%d\n",
+ props->lDevMin, dead_zone, props->lDevMax,
+ props->lMin, props->lDeadZone, props->lMax,
+ val, ret );
+
+ return ret;
+}
+
+/*
+ * Maps POV x & y event values to a DX "clock" position:
+ * 0
+ * 31500 4500
+ * 27000 -1 9000
+ * 22500 13500
+ * 18000
+ */
+DWORD joystick_map_pov(POINTL *p)
+{
+ if (p->x > 0)
+ return p->y < 0 ? 4500 : !p->y ? 9000 : 13500;
+ else if (p->x < 0)
+ return p->y < 0 ? 31500 : !p->y ? 27000 : 22500;
+ else
+ return p->y < 0 ? 0 : !p->y ? -1 : 18000;
+}
diff --git a/dlls/dinput/joystick_linuxinput.c b/dlls/dinput/joystick_linuxinput.c
index c24ade9..548f920 100644
--- a/dlls/dinput/joystick_linuxinput.c
+++ b/dlls/dinput/joystick_linuxinput.c
@@ -64,65 +64,10 @@
#include "dinput_private.h"
#include "device_private.h"
+#include "joystick_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(dinput);
-
-/*
- * Maps POV x & y event values to a DX "clock" position:
- * 0
- * 31500 4500
- * 27000 -1 9000
- * 22500 13500
- * 18000
- */
-DWORD joystick_map_pov(POINTL *p)
-{
- if (p->x > 0)
- return p->y < 0 ? 4500 : !p->y ? 9000 : 13500;
- else if (p->x < 0)
- return p->y < 0 ? 31500 : !p->y ? 27000 : 22500;
- else
- return p->y < 0 ? 0 : !p->y ? -1 : 18000;
-}
-
-/*
- * This maps the read value (from the input event) to a value in the
- * 'wanted' range.
- * Notes:
- * Dead zone is in % multiplied by a 100 (range 0..10000)
- */
-LONG joystick_map_axis(ObjProps *props, int val)
-{
- LONG ret;
- LONG dead_zone = MulDiv( props->lDeadZone, props->lDevMax - props->lDevMin, 10000 );
- LONG dev_range = props->lDevMax - props->lDevMin - dead_zone;
-
- /* Center input */
- val -= (props->lDevMin + props->lDevMax) / 2;
-
- /* Remove dead zone */
- if (abs( val ) <= dead_zone / 2)
- val = 0;
- else
- val = val < 0 ? val + dead_zone / 2 : val - dead_zone / 2;
-
- /* Scale and map the value from the device range into the required range */
- ret = MulDiv( val, props->lMax - props->lMin, dev_range ) +
- (props->lMin + props->lMax) / 2;
-
- /* Clamp in case or rounding errors */
- if (ret > props->lMax) ret = props->lMax;
- else if (ret < props->lMin) ret = props->lMin;
-
- TRACE( "(%d <%d> %d) -> (%d <%d> %d): val=%d ret=%d\n",
- props->lDevMin, dead_zone, props->lDevMax,
- props->lMin, props->lDeadZone, props->lMax,
- val, ret );
-
- return ret;
-}
-
#ifdef HAVE_CORRECT_LINUXINPUT_H
#define EVDEVPREFIX "/dev/input/event"
diff --git a/dlls/dinput/joystick_private.h b/dlls/dinput/joystick_private.h
index 3d87c7c..e1709e9 100644
--- a/dlls/dinput/joystick_private.h
+++ b/dlls/dinput/joystick_private.h
@@ -46,6 +46,9 @@ typedef struct JoystickGenericImpl
joy_polldev_handler *joy_polldev;
} JoystickGenericImpl;
+LONG joystick_map_axis(ObjProps *props, int val);
+
+DWORD joystick_map_pov(POINTL *p);
HRESULT WINAPI JoystickWGenericImpl_GetObjectInfo(LPDIRECTINPUTDEVICE8W iface,
LPDIDEVICEOBJECTINSTANCEW pdidoi, DWORD dwObj, DWORD dwHow);
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